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My dog has a red, growing bump on its head. What could it be?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Female | unspayed | 2 years and 9 months old | 6 lbs

Hi, my dog has a bump on its head. It appeared on Friday and has grown. Today was red. Please, could you tell what it might be? Thank you

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1 Answer

Most Helpful Answer

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Answered By Dr. Dayna, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on October 9th, 2017

Well, I agree it looks swollen and red. A bug bite is possible, but also a skin infection is probably more likely. Dogs do get skin infections fairly easily. A veterinarian can get a needle aspirate which can provide a lot of information about what it may be, as well as treatment recommendations. Good luck! I hope it resolves quickly!

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